74LVX14
LOW VOLTAGE CMOS HEX SCHMITT INVERTER
WITH 5V TOLERANT INPUTS
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HIGH SPEED:
tPD = 6.8ns (TYP.) at VCC = 3.3V
5V TOLERANT INPUTS
LOW POWER DISSIPATION:
ICC = 2 µA (MAX.) at TA=25°C
TYPICAL HYSTERESIS: 1V at VCC = 3.3V
LOW NOISE:
VOLP = 0.3V (TYP.) at VCC = 3.3V
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 2V to 3.6V (1.2V Data Retention)
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 14
IMPROVED LATCH-UP IMMUNITY
POWER DOWN PROTECTION ON INPUTS
SOP
Table 1: Order Codes
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T&R
74LVX14MTR
74LVX14TTR
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This device can be used to interface 5V to 3V
system. It combines high speed performance with
the true CMOS low power consumption.
Pin configuration and function are the same as
those of the 74LVX00 but the 74LVX14 has
hysteresis between the positive and the negative
input threshold typically of 1V.
This together with its schmitt trigger function
allows it to be used on line receivers with slow
rise/fall input signals.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
)
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DESCRIPTION
The 74LVX14 is a low voltage CMOS HEX
SCHMITT INVERTER fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology. It is ideal for low power, battery
operated and low noise 3.3V applications.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage.
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PACKAGE
SOP
TSSOP
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TSSOP
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Figure 1: Pin Connection And IEC Logic Symbols
August 2004
Rev. 5
1/11
74LVX14
Figure 2: Input Equivalent Circuit
Table 2: Pin Description
PIN N°
SYMBOL
1, 3, 5, 9, 11,
13
2, 4, 6, 8, 10,
12
7
14
NAME AND FUNCTION
1A to 6A
Data Inputs
1Y to 6Y
Data Outputs
GND
VCC
Ground (0V)
Positive Supply Voltage
Table 3: Truth Table
A
Y
L
H
H
L
Table 4: Absolute Maximum Ratings
Symbol
VI
DC Input Voltage
VO
DC Output Voltage
IIK
DC Input Diode Current
IOK
DC Output Diode Current
IO
DC Output Current
Value
let
so
)-
t(s
ICC or IGND DC VCC or Ground Current
Storage Temperature
Tstg
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Lead Temperature (10 sec)
TL
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Parameter
Supply Voltage
VCC
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Unit
-0.5 to +7.0
V
-0.5 to +7.0
V
-0.5 to VCC + 0.5
- 20
mA
± 20
mA
± 25
mA
V
± 50
mA
-65 to +150
°C
300
°C
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Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
Table 5: Recommended Operating Conditions
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Symbol
VCC
VO
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Top
Value
Unit
Supply Voltage (note 1)
2 to 3.6
V
Input Voltage
0 to 5.5
V
bs
VI
Output Voltage
Operating Temperature
1) Truth Table guaranteed: 1.2V to 3.6V
2/11
Parameter
0 to VCC
V
-55 to 125
°C
74LVX14
Table 6: DC Specifications
Test Condition
Symbol
Vt+
VtVH
VOH
VOL
II
ICC
Parameter
High Level Input
Threshold
Low Level Input
Threshold
Hysteresis Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Leakage
Current
Quiescent Supply
Current
Value
TA = 25°C
VCC
(V)
Min.
VOLP
VOLV
VIHD
VILD
Dynamic Low
Voltage Quiet
Output (note 1, 2)
Dynamic High
Voltage Input (note
1, 3)
Dynamic Low
Voltage Input (note
1, 3)
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-55 to 125°C
Min.
Min.
2.2
3.0
0.9
3.0
0.3
2.0
IO=-50 µA
3.0
1.2
0.3
Max.
V
0.9
0.9
V
1.2
V
1.2
IO=-50 µA
2.9
3.0
3.0
IO=-4 mA
2.58
2.0
IO=50 µA
0.0
0.1
0.1
3.0
IO=50 µA
0.0
0.1
0.1
3.0
IO=4 mA
0.36
0.44
3.6
VI = 5V or GND
± 0.1
±1
3.6
VI = VCC or GND
2
20
VCC
(V)
du
3.3
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3.3
3.3
ct
1.9
Min.
-0.5
TA = 25°C
Typ.
Max.
0.3
0.5
0.3
1.9
2.9
2.9
2.48
2.4
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Max.
2.2
2.0
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Unit
2.2
1.9
Test Condition
Parameter
Max.
3.0
Table 7: Dynamic Switching Characteristics
Symbol
Typ.
-40 to 85°C
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0.1
0.1
Pr
V
0.55
±1
µA
20
µA
Value
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
Unit
Max.
-0.3
2.2
CL = 50 pF
V
0.9
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1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.3V, (n-1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to 3.3V. Inputs under test switching: 3.3V to threshold (VILD), 0V to threshold
(VIHD), f=1MHz.
3/11
74LVX14
Table 8: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
tPLH tPHL Propagation Delay
Time
tOSLH
tOSHL
Output To Output
Skew Time (note1,
2)
VCC
(V)
CL
(pF)
2.7
2.7
Value
TA = 25°C
Min.
-40 to 85°C
-55 to 125°C
Typ.
Max.
Min.
Max.
Min.
Max.
15
50
8.7
11.2
16.3
19.8
1.0
1.0
19.5
23.0
1.0
1.0
19.5
23.0
3.3(*)
15
6.8
10.6
1.0
12.5
1.0
12.5
3.3(*)
2.7
50
9.3
14.1
1.0
16.0
1.0
16.0
50
3.3(*)
50
0.5
0.5
1.0
1.0
1.5
1.5
Unit
1.5
1.5
ns
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ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switching in the same direction, either HIGH or LOW
2) Parameter guaranteed by design
(*) Voltage range is 3.3V ± 0.3V
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Table 9: Capacitive Characteristics
Test Condition
Symbol
Parameter
Value
CIN
Input Capacitance
3.3
CPD
Power Dissipation
Capacitance
(note 1)
3.3
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TA = 25°C
VCC
(V)
Min.
bs
Typ.
Max.
4
10
O
)
21
s
(
t
c
-40 to 85°C
-55 to 125°C
Min.
Min.
Max.
10
Unit
Max.
10
pF
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per gate)
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Figure 3: Test Circuit
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CL =15/50pF or equivalent (includes jig and probe capacitance)
RT = ZOUT of pulse generator (typically 50Ω)
4/11
74LVX14
Figure 4: Waveform - Propagation Delays (f=1MHz; 50% duty cycle)
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5/11
74LVX14
SO-14 MECHANICAL DATA
mm.
DIM.
MIN.
inch
TYP
MAX.
MIN.
TYP.
MAX.
A
1.35
1.75
0.053
0.069
A1
0.1
0.25
0.004
0.010
A2
1.10
1.65
0.043
0.065
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
8.55
8.75
0.337
0.344
E
3.8
4.0
0.150
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1.27
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0.050
H
5.8
6.2
0.228
h
0.25
0.50
0.010
L
0.4
1.27
k
0°
8°
(s)
ddd
0.100
let
-O
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b
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0.157
0.244
0.020
0.016
0.050
0°
8°
0.004
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0016019D
6/11
74LVX14
TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
TYP.
MAX.
1.2
A1
0.05
A2
0.8
b
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
c
0.09
0.20
0.004
D
4.9
5
5.1
0.193
E
6.2
6.4
6.6
0.244
E1
4.3
4.4
4.48
0.169
1
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K
0˚
L
0.45
A
0.60
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0.197
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8˚
0.75
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0.0089
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0.65 BSC
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0.012
0.201
0.252
0.260
0.173
0.176
0.0256 BSC
0˚
8˚
0.018
0.024
0.030
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A2
let
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D
E1
PIN 1 IDENTIFICATION
1
0080337D
7/11
74LVX14
Tape & Reel SO-14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
A
TYP.
MAX.
330
13.2
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
0.504
0.519
)
s
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22.4
0.882
Ao
6.4
6.6
0.252
Bo
9
9.2
0.354
Ko
2.1
2.3
0.082
Po
3.9
4.1
0.153
P
7.9
8.1
0.311
)
(s
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MIN.
0.260
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0.362
0.090
0.161
0.319
74LVX14
Tape & Reel TSSOP14 MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
A
MIN.
TYP.
MAX.
330
13.2
12.992
C
12.8
D
20.2
0.795
N
60
2.362
T
0.504
0.519
)
s
(
ct
22.4
0.882
Ao
6.7
6.9
0.264
Bo
5.3
5.5
0.209
Ko
1.6
1.8
0.063
Po
3.9
4.1
0.153
P
7.9
8.1
0.311
)
(s
0.272
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P
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let
so
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du
0.217
0.071
0.161
0.319
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9/11
74LVX14
Table 10: Revision History
Date
Revision
27-Aug-2004
5
Description of Changes
Ordering Codes Revision - pag. 1.
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10/11
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74LVX14
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by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
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